TV The Hardy Boys - Season 1 Episode 4 : The Secret Warning / The Mystery of the Aztec Warrior The Hardy Boys - Season 1 Episode 4 : The Secret Warning / The Mystery of the Aztec Warrior 6.333/10 by 3 users When their nocturnal search of the Applegate property is suddenly interrupted, the Hardys learn more about the mysterious treasure---and discover that they're not the only ones looking for it. Applegate: Florenz Ames. Iola: Carole Ann Campbell. Details Casts Posters Images Title The Hardy Boys - Season 1 Episode 4 : The Secret Warning / The Mystery of the Aztec Warrior Alternative Titles First Air Date 1969-09-06 Last Air Date 1969-12-27 Number of Episodes 17 Number of Seasons 1 Genres Family, Animation, Networks ABC, Casts Byron Kane, Dal McKennon, Jane Webb Plot Keywords , Joe Hardy / Fenton Hardy (voice) Byron Kane Frank Hardy / Chubby Morton / Pete Jones (voice) Dal McKennon Wanda Kay Breckenridge / Aunt Gertrude Hardy (voice) Jane Webb Episodes List The Hardy Boys Season 1 :Episode 1 Footprints Under The Window / Hunting for Hidden Gold Footprints Under The Window / Hunting for Hidden Gold 1969-09-06 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,... The Hardy Boys Season 1 :Episode 2 Mystery of the Desert Giant / The Viking Symbol Mystery Mystery of the Desert Giant / The Viking Symbol Mystery 1969-09-13 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,... The Hardy Boys Season 1 :Episode 3 The Secret of the Old Mill / The Missing Chums The Secret of the Old Mill / The Missing Chums 1969-09-20 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,... The Hardy Boys Season 1 :Episode 4 The Secret Warning / The Mystery of the Aztec Warrior The Secret Warning / The Mystery of the Aztec Warrior 1969-09-27 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,... The Hardy Boys Season 1 :Episode 5 The Mystery of Cabin Island / The Hidden Harbor Mystery The Mystery of Cabin Island / The Hidden Harbor Mystery 1969-10-04 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,... The Hardy Boys Season 1 :Episode 6 The Secret of the Caves / A Figure In Hiding The Secret of the Caves / A Figure In Hiding 1969-10-11 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,... The Hardy Boys Season 1 :Episode 7 The Ghost at Skeleton Rock / The Mystery of the Chinese Junk The Ghost at Skeleton Rock / The Mystery of the Chinese Junk 1969-10-18 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,... The Hardy Boys Season 1 :Episode 8 The Shore Road Mystery / The Sign of the Crooked Arrow The Shore Road Mystery / The Sign of the Crooked Arrow 1969-10-25 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,... The Hardy Boys Season 1 :Episode 9 What Happened at Midnight / The Clue in the Embers What Happened at Midnight / The Clue in the Embers 1969-11-01 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,... The Hardy Boys Season 1 :Episode 10 The Clue of the Screeching Owl / The Yellow Feather Mystery The Clue of the Screeching Owl / The Yellow Feather Mystery 1969-11-08 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,... The Hardy Boys Season 1 :Episode 11 The House on the Cliff / Mystery of the Spiral Bridge The House on the Cliff / Mystery of the Spiral Bridge 1969-11-15 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,... The Hardy Boys Season 1 :Episode 12 The Mystery at Devil's Paw / The Haunted Fort The Mystery at Devil's Paw / The Haunted Fort 1969-11-22 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,... The Hardy Boys Season 1 :Episode 13 The Sinister Signpost / The Melted Coins The Sinister Signpost / The Melted Coins 1969-11-29 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,... The Hardy Boys Season 1 :Episode 14 The Mark on the Door / The Flickering Torch Mystery The Mark on the Door / The Flickering Torch Mystery 1969-12-06 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,... The Hardy Boys Season 1 :Episode 15 The Secret of Wildcat Swamp / The Clue of the Broken Blade The Secret of Wildcat Swamp / The Clue of the Broken Blade 1969-12-13 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,... The Hardy Boys Season 1 :Episode 16 The Hooded Hawk Mystery / The Short Wave Mystery The Hooded Hawk Mystery / The Short Wave Mystery 1969-12-20 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,... The Hardy Boys Season 1 :Episode 17 The Phantom Freighter / The Secret of Pirates Hill The Phantom Freighter / The Secret of Pirates Hill 1969-12-27 The Hardy Boys is an animated series, produced by Filmation and aired Saturday mornings on ABC in 1969. It featured the Hardy Boys, Joe and Frank,...